Lab goal:
Does the mass of a hot wheel car effect the height at which you drop the car in order for it to jump a gap in the hot wheels race track?
What is the potential engery at 67cm on the track with three different masses?
Using velocity what would the kenetic energy be right before the car jumps the track (6cm) with three different masses? Materials/Procedure:
Hot Wheels Race Track
5 Hot Wheel Cars
Tape
2 Physics: Principles and Problems
Ruler
Scale
Counter
Trash Can
Camera and Cord
Calculator
Notebook
Marbles
Logger Pro
1) Build race car track
-connect 6 tracks together with a jump off track.
-Leave first gap: 40 centimeters.
-Connect one track to a hieght of 1 Physics: Principles and Problems text book and 2 textbooks long.
-tape track to drawer, counter, and floor.
-tape and measure from the ground 33cm for trial 1, 67cm for trial 2, and 100cm for trial 3 on the race track.
2) trial 1- mass a convertible race car with no added marbles. 32g
-drop car from each of the three distances.
-record data.
3)trial 2- mass a convertible race car with marbles attached with tape. 42g
-drop car from each of the three distances.
-record data.
4)trial 3- mass a convertile race car with marbles attached with tape. 51g
-drop car from each of the three distances.
-record data.
5) In each of the trials film each of the cars from the 67cm distance.
6) find the potential energy for all race car masses at 67cm and use the equation: Potential Energy= mg*h
7) Upload videos onto computer
8) Using Logger Pro, insert one video at a time, and find the velocity for each car.
-Insert movie into Logger Pro.
-auto arrange page
-add data point dots to the video and follow the motion of the race car down the track.
-click ruler on video and measure gap in track and height where car is dropped.
-Click Data, New Calculated Column
-Name: Velocity, Short name: V, Units: m/s, Data set: VideoAnaylsis, Equation: Function= sqrt("X Velocity"^2+"Y Velocity"^2)
-Autoscale graphs
-use the examine tool, find the velocity of the race car at 6 centimeters (right before the car leaves the track).
-Using Velocity and Kenetic Energy formulas, find the Kenetic energy of the race car right before the car leaves the track (6cm). Repeat for all car masses using each video of the car.
Data/calculations:
Trial 1 (32g) - No Marbles Added:
Height (cm)
Yes/No
33
No
67
Yes
100
Yes
Trial 2 (42g):
Height (cm)
Yes/No
33
No
67
Yes
100
No
Trial 3 (51g):
Height (cm)
Yes/No
33
No
67
No
100
No
Potential Energy= mg*h
PE=(32g)(9.8)(67cm)
Potential Energy at 67 cm with 32g = 21011.2J
PE=(42g)(9.8)(67cm)
Potential Enery at 67cm with 42g= 27577.2J
PE=(51g)(9.8)(67cm)
Potential Energy at 67cm with 51g=33486.6J
Kenetic Energy = (1/2)mv^2
Velocity 32g right before the car lifts off the track (6cm)= 292.656m/s
KE= (1/2)(32)(292.656)^2
KE= 1.379 J
Velocity 42g right before the car lifts off the track (6cm)= 281.832m/s
KE=(1/2)(42)(281.832)^2
KE=1.66J
Velociy 51g right before the car lifts off the track (6cm)= 577.402m/s
KE=(1/2)(51)(577.402)^2
KE=8.501J
Conclusion:
In our expirament, we put different masses on the race car to see if the mass effects the height at which you need to drop the car on the track. From doing this expirment we conclude that the mass does effect the height at which a car is dropped at. In trial one, the less mass you have you need to drop the car higher becuase then the car has more momentum to jump the gap in the track. In trial two, the mass was increased and the height needed to be increased to have the same momentum as car one did to jump the track. In trail 3, there was too much mass on the car for it to drive controlled down the steepness of the track. Using our knowledge of Potential Energy formula we were able to find each Potential Energy at 67cm on the track: PE=(m)(g)(h). The more mass on the car, the greater Potential Energy is. Using logger pro, we were able to find the velocity of each car mass at 6cm (right before the car leaves the track). Having velocity we could use the formula: KE=(1/2)(m)(v^2). Finding the Kenetic Energy for each race car mass at 6cm we were able to conclude that the more mass and velocity the car has increases the Kenetic Energy.
Title: Hot Wheels Jump
Lab goal:
Does the mass of a hot wheel car effect the height at which you drop the car in order for it to jump a gap in the hot wheels race track?
What is the potential engery at 67cm on the track with three different masses?
Using velocity what would the kenetic energy be right before the car jumps the track (6cm) with three different masses?
Materials/Procedure:
Hot Wheels Race Track
5 Hot Wheel Cars
Tape
2 Physics: Principles and Problems
Ruler
Scale
Counter
Trash Can
Camera and Cord
Calculator
Notebook
Marbles
Logger Pro
1) Build race car track
-connect 6 tracks together with a jump off track.
-Leave first gap: 40 centimeters.
-Connect one track to a hieght of 1 Physics: Principles and Problems text book and 2 textbooks long.
-tape track to drawer, counter, and floor.
-tape and measure from the ground 33cm for trial 1, 67cm for trial 2, and 100cm for trial 3 on the race track.
2) trial 1- mass a convertible race car with no added marbles. 32g
-drop car from each of the three distances.
-record data.
3)trial 2- mass a convertible race car with marbles attached with tape. 42g
-drop car from each of the three distances.
-record data.
4)trial 3- mass a convertile race car with marbles attached with tape. 51g
-drop car from each of the three distances.
-record data.
5) In each of the trials film each of the cars from the 67cm distance.
6) find the potential energy for all race car masses at 67cm and use the equation: Potential Energy= mg*h
7) Upload videos onto computer
8) Using Logger Pro, insert one video at a time, and find the velocity for each car.
-Insert movie into Logger Pro.
-auto arrange page
-add data point dots to the video and follow the motion of the race car down the track.
-click ruler on video and measure gap in track and height where car is dropped.
-Click Data, New Calculated Column
-Name: Velocity, Short name: V, Units: m/s, Data set: VideoAnaylsis, Equation: Function= sqrt("X Velocity"^2+"Y Velocity"^2)
-Autoscale graphs
-use the examine tool, find the velocity of the race car at 6 centimeters (right before the car leaves the track).
-Using Velocity and Kenetic Energy formulas, find the Kenetic energy of the race car right before the car leaves the track (6cm). Repeat for all car masses using each video of the car.
Data/calculations:
Trial 1 (32g) - No Marbles Added:
PE=(32g)(9.8)(67cm)
Potential Energy at 67 cm with 32g = 21011.2J
PE=(42g)(9.8)(67cm)
Potential Enery at 67cm with 42g= 27577.2J
PE=(51g)(9.8)(67cm)
Potential Energy at 67cm with 51g=33486.6J
Kenetic Energy = (1/2)mv^2
Velocity 32g right before the car lifts off the track (6cm)= 292.656m/s
KE= (1/2)(32)(292.656)^2
KE= 1.379 J
Velocity 42g right before the car lifts off the track (6cm)= 281.832m/s
KE=(1/2)(42)(281.832)^2
KE=1.66J
Velociy 51g right before the car lifts off the track (6cm)= 577.402m/s
KE=(1/2)(51)(577.402)^2
KE=8.501J
Conclusion:
In our expirament, we put different masses on the race car to see if the mass effects the height at which you need to drop the car on the track. From doing this expirment we conclude that the mass does effect the height at which a car is dropped at. In trial one, the less mass you have you need to drop the car higher becuase then the car has more momentum to jump the gap in the track. In trial two, the mass was increased and the height needed to be increased to have the same momentum as car one did to jump the track. In trail 3, there was too much mass on the car for it to drive controlled down the steepness of the track. Using our knowledge of Potential Energy formula we were able to find each Potential Energy at 67cm on the track: PE=(m)(g)(h). The more mass on the car, the greater Potential Energy is. Using logger pro, we were able to find the velocity of each car mass at 6cm (right before the car leaves the track). Having velocity we could use the formula: KE=(1/2)(m)(v^2). Finding the Kenetic Energy for each race car mass at 6cm we were able to conclude that the more mass and velocity the car has increases the Kenetic Energy.